Final answer:
The correct option is (B). The next phase of the project life cycle is planning, which involves developing a detailed design for how to accomplish the project.
Step-by-step explanation:
The next phase of the project life cycle, after a project is authorized and/or a contract is signed with an external contractor, is planning.
Planning involves developing a detailed design for how to accomplish the project. This includes identifying physical and functional components, determining shapes and dimensions, selecting materials and fabrication processes, and identifying product components. A detailed design is necessary to ensure that the project is executed effectively and efficiently, and to avoid potential issues or failures.